Machine for molding sinks, lavatory-basins, &amp;c., in earthenware.



PATENTED SEPT. 27, 1904.

B. STANLEY. MACHINE FOR MOLDING SINKS, LAVATORY BASINS, &o., INEARTHENWARE APPLIOATION FILED MAY s, 1903,

N0 MODEL.

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No; 770,874.. PATENTED SEPT. 27, 1904. R.STANLEY.,

MAGHINE FOR MOLDING SINKS, LAVATORY BASINS, &0., IN EARTHENWARE.APPLICATION FILED MAY 8, 1903.

NO MODEL, 3 SHEETS-SHEET 2.

| l l I UNITED STATES Patented September 27, 1904.

PATENT OFFICE.

' MACHINE FOR MOLDING SINKS, LAVATORY-BASINS, dc, IN EARTHENWARE.

SPECIFICATION forming part of Letters Patent N 0. 770,874, datedSeptember 27, 1904.

I Application filed May 8, 1903- Serial No. 156,209. (No model.)

To all whom it may concern.-

Be it known that I, REGINALD STANLEY, a subject of Edward, King of GreatBritain and Ireland, residing at Manor Court. N uneaton, in the countyof Warwick, England, haveinvented certain new and useful Improvements inMachines for Molding Sinks, Lavatory- Basins, and Such Like Goods inEarthenware, of which the following is a specification.

This invention consists of improvements in machines for molding sinks,lavatory-basins, and such like goods in earthenware, the object of theinvention being to increase the speed and improve the quality ofmanufacture of such goods.

The accompanying drawings illustrate my invention, wherein Figure 1 is asectional elevation of the machine for molding sinks and is taken onlineA B of Fig. 2. Fig. 2 is a side view, partly in section, of themachine. Fig. 3 is a sectional plan of the machine for molding sinks andis taken on line C D of Fig. 2. Fig. 4 is a side view of a detail ofFig. 1. Fig. 5 is a sectional elevation on line E F of Fig. 6 and showsa form of mold for producing lavatorybasins. Fig. 6 is a plan of Fig. 5.Fig. 7 is a sectional elevation on lineGr H of Fig. 8, showing anotherform of mold for producing lavator -basins. Fig. 8 is a plan of Fig. 7.

In the drawings the base 1, table 2, and standards 3 and 4 constitutethe framework of the machine.

5 is a steam-cylinder having the usual piston; but instead of asinglepiston-rod two piston-rods are preferably employed, because I find thatsometimes the pressure within the mold is uneven when only one such rodis employed, causing the latter to jam or to unduly wear the gland 6,thereby seriously affecting the working of the machine, especially whenmaking large sinks. Moreover, two piston-rods prevent any twisting ortilting of the upper die. The piston-rods carry acrosshead 7, to whichis secured the upper die 8,having lugs 9 9. A plate 10 surrounds theupper die, being suspended loosely upon headed bolts 11 11, hanging fromthe lugs 9 9. The steam slide-valve for operating the upper die isactuated by a lever 12.

13 is a piece of canvas upon which stands the lower die, composed ofsides 14 14, having strengthening-webs 15 15, the sides b'eing securedtogether temporarily by means of clips 16 16, hinged to the sides 14 14at 17 17.

The working of the machine (shown in Figs. 1 to 4) is as follows:Assuming the upper die to be raised, a clot of clay is placed Within thelower die, when the upper die descends, and before its descent isfinished. the plate 10 rests upon the lower die, as in Fig. 2. At thisstage, preferably, I use stays for keeping the plate 10 firmly presseddown to resist the upward pressure of the clay within the mold, asfollows: Pins 18 18, Figs. 1 and 4, are hinged at 19 19 to the cylinderand sleeves 20 20 screwed over them, being held thereon at any desiredposition by means of lock-nuts 21 21. Each stay when not in use is heldclear of the plate 10 by means of a hook 22. When the stay composed ofthe parts 18 and 19 is required for use, it is freed from the hook 22,so that it hangs vertically over the plate 10, when an eccentric handle23 upon its end is swung round to firmly hold the plate down. 24 24 areair-valves within the upper die 8. The pressing of the sink is thencompleted, when the stays being released and the upper die raised theclips 16 16 are turned back, thus leaving the sides free to be removed,after which the sink is taken away on the canvas from the machine.

Modifications of lower and upper dies are shown in Figs. 5 to 8.According to Figs. 5 and 6, a lavatory-basin is molded face downwardwithin the space 25, 26 and 27 being the dies for the dish of the basinand soapreceptacles, respectively. According to Figs. 7 and 8, the basinis molded the usual way up within the space 25. In both cases canvas.which may be elastic, may be used to prevent the article adhering to themold. In these figures I have shown means for insuring that the severalparts of the mold correctly register with one another, because suchmeans are more necessary when thin articles, such as basins, are moldedthan with thick articles, such as sinks, although I may use similarmeans when molding thick articles. These means comprise grooves 28 28within the board 29 and dowels 3O 30 in the sides 14: 14: andguide-studs 31 31, fixed in the plate and adapted to enter holes 32 32in the die sides. After the pressure the upper die is raised, the sides14: 14 removed, the cavity left by the upper die filled level withabsorbent material, such as dry clay-dust or sawdust, in order to absorbthe moisture and keep the basin in shape while drying. A.

flat board is then placed over the hole, which is then turned completelyover and removed for drying previously to being glazed and burned in thekiln in the usual way. By employing suitable dies it is easy to makevarious shapes of basins in the above manner.

What I claim is- 1. In a machine for molding sinks, lavatorybasins, andsuch'like goods, the combination with the upper die of a flat platesurrounding same, means for suspending the plate loosely to the die,stays pivotally held at one end and means within said stays for varyingtheir length and also additional means at their other ends whereby thesaid plate may be firmly held down upon the tops of the sides of thelower die.

2. In a machine for molding sinks, lavatorybasins, and such like goods,the combination of an upper die, a flat plate surrounding same, meansfor suspending the plate loosely to the die, stays pivotally held at oneend and means within said stays for Varying their length, a lower dieupon the table of the machine and composed of four sides which areseparable from one I another, means upon the stays whereby the saidplate may be firmly held down upon the tops of the sides of the lowerdie, and clip 16 having one leg hinged to one of said sides, the "otherleg being adapted to grip the adjacent end of the next side for thepurpose of fastening the two sides together when the clip is swung uponits pivot.

3. In a machine for molding sinks, lavatorybasins, and such like goods,the combination of an upper die, a flat plate surrounding same, meansfor suspending the plate loosely to the die, stays pivotally held at oneend and means within said stays for varying their length, a lower diecomposed of four sides which are separable from one another, means uponthe stayswhereby the said plate may be firmly held down upon the tops ofthe sides of the lower die, clip 16 having one leg hinged to one of saidsides the other leg being adapted to grip the adjacent end of the nextside for the purpose of fastening the two sides together when the clipis swung upon its pivot, and dowels upon the lower edges of said sidesadapted to slide within grooves 28 whereby the sides may be brought intocorrect position for molding.

at. In a machine for molding sinks, lavatorybasins, and such like goods,the combination of an upper die, a fiat plate surrounding same, studs 31within said plate, means for suspending the plate loosely to the die,stays pivotally held at one end and means within said stays for varyingtheir length, a lower die, means upon said stays whereby the said platemay be firmly held down upon the tops of the sides of the lower die,lugs having holes 32 upon the sides of the lower die and so situatedthat the studs 31 can enter said holes for the purpose of guiding theplate and the upper die into position upon the lower die.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

REGINALD STANLEY.

Witnesses:

GEORGE BUTCHER, A. H. YANNAWAY.

